I'm a begginer, and I don't know the first thing about sight reading. These are my questions:
1) Is EVERY piece sight-readable? I mean, when I see a proffesional playing Beethoven's Apasionatta and reading the sheet music, should I suppose s/he's just using it to remember the technical specifications (crescendo, etc), or is s/he actually reading the notes s/he has to play?
2) How many years of experience should one have in order to sight read a piece as hard as, say, Bach's Menuet in G major? (I mean, as easy to play by memory as this one)
3) How is this learned? Are there special exercises or what?